# Gates Lear Jet 28 - Type: Aircraft model (FAA registry) - Registry code: 5170528 - Manufacturer (registry): GATES LEAR JET - Model: 28 - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 2 · Turbo-jet - Seats: 9 - Weight class: 12,500 to 19,999 lb - Certification: Type certificated - Data sheet: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (OpenAirDocs) - Holder: Learjet Inc. - Registered aircraft: 3 - Page: https://openairdocs.org/model/gates-lear-jet-28 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2018-19-04](https://openairdocs.org/ad/2018-19-04): TE Flap Control System · Learjet 28, 29, 31 and 9 more. Effective Oct 23, 2018 - [AD 2007-04-18](https://openairdocs.org/ad/2007-04-18): Left- and right-hand standby fuel pump switches · Learjet 23, 24, 24A and 25 more. Effective Mar 23, 2007 - [AD 2005-13-36](https://openairdocs.org/ad/2005-13-36): Center ball of the aileron control cable · Learjet 23, 24, 24A and 21 more. Effective Aug 9, 2005 - [AD 2001-07-11](https://openairdocs.org/ad/2001-07-11): Main Landing Gear Tires · Learjet 23, 24, 24A and 25 more. Effective May 1, 2001 - [AD 99-16-03](https://openairdocs.org/ad/99-16-03): Horizontal Stabilizer Anti-Ice System · Learjet 23, 24, 24A and 22 more. Effective Sep 7, 1999 - [AD 95-20-03](https://openairdocs.org/ad/95-20-03): Airplane Flight Manual (AFM) - Altitude Limitations · Learjet 24, 24A, 24B and 24 more. Effective Nov 2, 1995 - [AD 92-19-12](https://openairdocs.org/ad/92-19-12): Oxygen Plumbing & Map Light Wires · Learjet 23, 24, 24A and 22 more. Effective Nov 17, 1992 - [AD 89-12-01](https://openairdocs.org/ad/89-12-01): Drag Chute Riser · Learjet 24, 24A, 24B and 22 more. Effective Jul 3, 1989 - [AD 86-05-05 R1](https://openairdocs.org/ad/86-05-05-R1): Battery Vent System · Learjet 23, 24, 24A and 20 more. Effective Jan 19, 1988 - [AD 86-22-05](https://openairdocs.org/ad/86-22-05): Flap Sector Mounting Brackets Inspection · Learjet 23, 24, 24A and 23 more. Effective Nov 10, 1986 - [AD 82-01-05 R2](https://openairdocs.org/ad/82-01-05-R2): Stall Warning Accelerometer Unit · Learjet 23, 24, 24A and 16 more. Effective Apr 10, 1986 - [AD 80-19-11 R1](https://openairdocs.org/ad/80-19-11-R1): Automatic Flight Control and Stall Warning Systems · Learjet 23, 24, 24A and 20 more. Effective May 20, 1985 - [AD 84-19-06](https://openairdocs.org/ad/84-19-06): Tab Control System · Learjet 24, 24A, 24B and 22 more. Effective Oct 22, 1984 - [AD 81-13-07](https://openairdocs.org/ad/81-13-07): Change to AFM Fuel Starvation · Learjet 23, 24, 24A and 20 more. Effective Jun 25, 1981 - [AD 80-26-02](https://openairdocs.org/ad/80-26-02): AFCS/AFC-SS Pitch Function · Learjet 23, 24, 24A and 16 more. Effective Jan 15, 1981 - [AD 80-19-09 R1](https://openairdocs.org/ad/80-19-09-R1): Jet Pumps · Learjet 23, 24, 24A and 20 more. Effective Dec 11, 1980 - [AD 80-07-09](https://openairdocs.org/ad/80-07-09): Cabin Main Entrance Upper Door · Learjet 23, 24, 24A and 20 more. Effective May 1, 1980 ## Information bulletins (advisory) (4) - [SAIB 2026-07](https://openairdocs.org/saib/2026-07): MAIN LANDING GEAR ATTACH SECTION, Trunnion Pins. Issued Mar 19, 2026 - [SAIB NM-16-24](https://openairdocs.org/saib/NM-16-24): Fuselage: Main Plate/Skin. Issued Sep 15, 2016 - [SAIB NM-13-38](https://openairdocs.org/saib/NM-13-38): Flight Controls Control Column Section. Issued Jun 24, 2013 - [SAIB CE-01-43](https://openairdocs.org/saib/CE-01-43): . Issued Sep 25, 2001 ## Registered aircraft (3) - [N500LG](https://openairdocs.org/aircraft/N500LG): [Jet Manager Inc](https://openairdocs.org/faa-owner/JET%20MANAGER%20INC), [Hanford, CA](https://openairdocs.org/faa-place/CA/Hanford), S/N 005 - [N769CA](https://openairdocs.org/aircraft/N769CA): [Wings Over Texas Holdings LLC](https://openairdocs.org/faa-owner/WINGS%20OVER%20TEXAS%20HOLDINGS%20LLC), [Denton, TX](https://openairdocs.org/faa-place/TX/Denton), S/N 004 - [N800GA](https://openairdocs.org/aircraft/N800GA): [Gorilla Aviation LLC](https://openairdocs.org/faa-owner/GORILLA%20AVIATION%20LLC), [Hanford, CA](https://openairdocs.org/faa-place/CA/Hanford), built 1979, S/N 003 ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (2) As reported by operators and repair stations, by the model named in the report. - [SDR 2016FA0000151](https://openairdocs.org/sdr/2016FA0000151), Mar 22, 2016: TUBE. FAILED. DURING A ROUTINE FLIGHT THIS TUBE RUPTURED AT THE BASE OF THE FLARE SLEEVE FOR THE B-NUT. THE RUPTURE WAS APPROXIMATELY 50 PERCENT AROUND THE TUBE. THE RUPTURED - [SDR JDMA648B](https://openairdocs.org/sdr/JDMA648B), Feb 14, 2001: LINE. CRACKED. HYDRAULIC TRANSFER LINE IN AUXILARY SYSTEM, LINE WAS FOUND BROKEN AT FLAIR CAUSING LOSS OF HYDRAULIC FLUID AND HYDRAULIC SYSTEM FAILURE. AIRCRAFT WAS REPAIRED A ## STCs that may be installed (OpenAirDocs) (37) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc - [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc - [STC ST12087CH](https://openairdocs.org/stc/ST12087CH): Installation replacement Cabin/Cockpit Handheld Fire Extinguishers. Avcon Industries Inc - [STC ST02416SE](https://openairdocs.org/stc/ST02416SE): Installation of the replacement rate gyro, Butler National Part Number 501-1169-01 MOD A or 501-1169-02 MOD A. Symetric Industries, DBA Extant Aerospace - [STC ST02417SE](https://openairdocs.org/stc/ST02417SE): Installation of the replacement stall warning vertical accelerometer, Butler National Part Number 02904001-101. Symetric Industries, DBA Extant Aerospace - [STC ST01308WI](https://openairdocs.org/stc/ST01308WI): Installation of L-3 Communications Avionics Systems Inc. (Landmark) Terrain Awareness Warning System (TAWS) model TAWS8100. Acron Aviation Inc - [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc - [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC - [STC ST04728NY](https://openairdocs.org/stc/ST04728NY): Installation of LAI CoolView Cabin Window. Lee Aerospace Inc - [STC ST03424CH](https://openairdocs.org/stc/ST03424CH): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders. CMD Flight Solutions LLC - [STC ST02004WI](https://openairdocs.org/stc/ST02004WI): Installation of the Garmin GI-275 Instantaneous Vertical Speed Indicators (IVSI). Peregrine - [STC ST01930LA](https://openairdocs.org/stc/ST01930LA): Installation of Sandel Avionics SN4500 Electronic Horizontal Situation Indicator (EHSI). Sandel Avionics LLC - [STC ST04177AT](https://openairdocs.org/stc/ST04177AT): Installation of a Talon Aerospace LED Replacement General Purpose Lamps. Aaxico Technical Services Inc - [STC ST02635LA](https://openairdocs.org/stc/ST02635LA): Modification to replace the existing Mode S Transponder system with the ACSS NXT-600 Mode S Transponder with ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC - [STC ST00835DE](https://openairdocs.org/stc/ST00835DE): Installation of Automatic Dependent Surveillance - Broadcast (ADS-B) Out and In functionality using the Garmin GTX 335R and GTX 345R Transponders plus qualified position sensor. Peregrine - [STC SA4999NM](https://openairdocs.org/stc/SA4999NM): Installation of lifeport patient loading and support system. LifePort LLC - [STC ST11071SC](https://openairdocs.org/stc/ST11071SC): Demonstration of aircraft critical equipment and antenna systems tolerance of radio frequency interference (RFI) from intentional or spurious transmissions from certain Portable Electronic Devices (PEDs). Liberty Partners Inc - [STC ST03776NY](https://openairdocs.org/stc/ST03776NY): Modification to upgrade existing Rockwell Collins TCAS (Model: TTR-920, TTR-921, and TTR-4000) at VERSION 7.0 to Rockwell Collins TCAS (Model: TTR-921, TTR-4000, and TTR-4100) at VERSION 7.1 (ACAS II). Scandinavian Avionics Design ApS - [STC ST02500SE](https://openairdocs.org/stc/ST02500SE): The installation of the Garmin GDL-88 with the Flight Stream 210 to allow ADS-B(In) Flight Information Service Broadcast (FIS-B), independent of the ADS-B(Out) solution compliance. Butler National Corporation - [STC SA1170GL](https://openairdocs.org/stc/SA1170GL): Except Model 55: Install Egan Aviation air ambulance stretcher P/N 125 using installation kit P/N 803, inverter/pump kit No. 808, 809, or 810. For Model 55, install air ambulance stretcher P/N 125 using installation kit P/N 804, medical oxygen system kit P/N 807, inverter/pump kit No. 808, 809, or810. Paul/ Lanna Egan LLC - [STC ST02316LA](https://openairdocs.org/stc/ST02316LA): Installation of a Crane Aerospace & Electronics Tire Sensor Assembly. ELDEC Corporation - [STC ST01734WI](https://openairdocs.org/stc/ST01734WI): Installation of an Emergency Pneumatic Reservoir Assembly, EAS P/N 1260001-02. EAS Corporation - [STC ST03132CH](https://openairdocs.org/stc/ST03132CH): Installation of a single or dual Collins TDR-94/94D Mode S Transponder using existing control head, aircraft wiring, and antenna(s). Royal Air Inc - [STC SA1489CE](https://openairdocs.org/stc/SA1489CE): Removal of 24-inch wide executive door and installation of 36-inch wide cargo door per AVCON Drawing List 36000 stamped FAA Approved with a date of May 8, 1979, July 3, 1980, November 15, 2010, or later approved revision for Learjet Models 25, 25A, 25B, 25C, 25D, 25F, 28, 29, 31, 31A, 35, 35A, 36, and 36A. Avcon Industries Inc - [STC ST01195WI](https://openairdocs.org/stc/ST01195WI): Installation of Rosemount Pitot/Static Probes, altimeters, and associated equipment in Learjet 20 series aircraft to obtain Reduced Vertical Separation Minimum approval. Avcon Industries Inc - [STC ST02540AT-D](https://openairdocs.org/stc/ST02540AT-D): Installation of replacement fuel tank sealant system. FFC Manufacturing - [STC ST01842SE](https://openairdocs.org/stc/ST01842SE): Installation of a Sandel Avionics Horizontal Situation Indicator (HSI) and Attitude Direction Indicator (ADI). Butler National Corporation - [STC SA30GL](https://openairdocs.org/stc/SA30GL): Installation of electronic engine synchronizer system. Ontic Engineering and Manufacturing Inc - [STC SA1170CE](https://openairdocs.org/stc/SA1170CE): Stretcher installation in cabin area. Med-Flite of Midamerica Inc - [STC ST01705NY](https://openairdocs.org/stc/ST01705NY): Installation must be in accordance with Section 1 of DECA Modification Summary MS02051, Rev 2, dated March 7, 2003. Logo Tech Manufacturing Inc - [STC SA4918SW](https://openairdocs.org/stc/SA4918SW): Installation of windshield defog system. Jet East, Inc - [STC SA3899WE](https://openairdocs.org/stc/SA3899WE): Installation of Collins F1S-84 Flight Instrument System. Learjet Inc - [STC SA4218WE](https://openairdocs.org/stc/SA4218WE): Installation of Radio Corporation of America Primus-300SL Color Weather Radar System. Learjet Inc - [STC SA4399NM](https://openairdocs.org/stc/SA4399NM): Installation of high frequency radio communications system. Learjet Inc - [STC SA4403NM](https://openairdocs.org/stc/SA4403NM): Installation of third attitude indicator that meets the requirements of FAR 121.305(j). Learjet Inc - [STC SA4433NM](https://openairdocs.org/stc/SA4433NM): Installation of communication and navigation systems electronic controls. Learjet Inc - [STC SA4435NM](https://openairdocs.org/stc/SA4435NM): Installation of an emergency locator transmitter. Learjet Inc ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Thompson James 28](https://openairdocs.org/model/thompson-james-28): 0 registered aircraft, registry code 05624JC - [Thibault Michael L #2-8](https://openairdocs.org/model/thibault-michael-l-2-8): 0 registered aircraft, registry code 056266W - [Nieuport 28 28](https://openairdocs.org/model/nieuport-28-28): 0 registered aircraft, registry code 3630559 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.